Class: ActionDispatch::Request

Inherits:
Rack::Request
  • Object
show all
Includes:
Http::Cache::Request, Http::FilterParameters, Http::MimeNegotiation, Http::Parameters, Http::URL
Defined in:
lib/action_dispatch/http/request.rb,
lib/action_dispatch/request/utils.rb,
lib/action_dispatch/request/session.rb,
lib/action_dispatch/middleware/flash.rb,
lib/action_dispatch/middleware/cookies.rb

Direct Known Subclasses

TestRequest

Defined Under Namespace

Classes: Session, Utils

Constant Summary collapse

LOCALHOST = 
Regexp.union [/^127\.\d{1,3}\.\d{1,3}\.\d{1,3}$/, /^::1$/, /^0:0:0:0:0:0:0:1(%.*)?$/]
ENV_METHODS = 
%w[ AUTH_TYPE GATEWAY_INTERFACE
PATH_TRANSLATED REMOTE_HOST
REMOTE_IDENT REMOTE_USER REMOTE_ADDR
SERVER_NAME SERVER_PROTOCOL

HTTP_ACCEPT HTTP_ACCEPT_CHARSET HTTP_ACCEPT_ENCODING
HTTP_ACCEPT_LANGUAGE HTTP_CACHE_CONTROL HTTP_FROM
HTTP_NEGOTIATE HTTP_PRAGMA ].freeze
RFC2616 =

List of HTTP request methods from the following RFCs: Hypertext Transfer Protocol – HTTP/1.1 (www.ietf.org/rfc/rfc2616.txt) HTTP Extensions for Distributed Authoring – WEBDAV (www.ietf.org/rfc/rfc2518.txt) Versioning Extensions to WebDAV (www.ietf.org/rfc/rfc3253.txt) Ordered Collections Protocol (WebDAV) (www.ietf.org/rfc/rfc3648.txt) Web Distributed Authoring and Versioning (WebDAV) Access Control Protocol (www.ietf.org/rfc/rfc3744.txt) Web Distributed Authoring and Versioning (WebDAV) SEARCH (www.ietf.org/rfc/rfc5323.txt) Calendar Extensions to WebDAV (www.ietf.org/rfc/rfc4791.txt) PATCH Method for HTTP (www.ietf.org/rfc/rfc5789.txt)

%w(OPTIONS GET HEAD POST PUT DELETE TRACE CONNECT)
RFC2518 = 
%w(PROPFIND PROPPATCH MKCOL COPY MOVE LOCK UNLOCK)
RFC3253 = 
%w(VERSION-CONTROL REPORT CHECKOUT CHECKIN UNCHECKOUT MKWORKSPACE UPDATE LABEL MERGE BASELINE-CONTROL MKACTIVITY)
RFC3648 = 
%w(ORDERPATCH)
RFC3744 = 
%w(ACL)
RFC5323 = 
%w(SEARCH)
RFC4791 = 
%w(MKCALENDAR)
RFC5789 = 
%w(PATCH)
HTTP_METHODS = 
RFC2616 + RFC2518 + RFC3253 + RFC3648 + RFC3744 + RFC5323 + RFC4791 + RFC5789
HTTP_METHOD_LOOKUP = 
{}

Constants included from Http::URL

Http::URL::HOST_REGEXP, Http::URL::IP_HOST_REGEXP, Http::URL::PROTOCOL_REGEXP

Constants included from Http::FilterParameters

Http::FilterParameters::ENV_MATCH, Http::FilterParameters::NULL_ENV_FILTER, Http::FilterParameters::NULL_PARAM_FILTER

Constants included from Http::Parameters

Http::Parameters::PARAMETERS_KEY

Constants included from Http::Cache::Request

Http::Cache::Request::HTTP_IF_MODIFIED_SINCE, Http::Cache::Request::HTTP_IF_NONE_MATCH

Instance Attribute Summary

Attributes included from Http::MimeNegotiation

#variant

Instance Method Summary collapse

Methods included from Http::URL

#domain, extract_domain, extract_subdomain, extract_subdomains, full_url_for, #host, #host_with_port, #optional_port, path_for, #port, #port_string, #protocol, #raw_host_with_port, #server_port, #standard_port, #standard_port?, #subdomain, #subdomains, #url, url_for

Methods included from Http::FilterParameters

#filtered_env, #filtered_parameters, #filtered_path

Methods included from Http::Parameters

#parameters, #path_parameters, #path_parameters=, #symbolized_path_parameters

Methods included from Http::MimeNegotiation

#accepts, #content_mime_type, #content_type, #format, #format=, #formats, #formats=, #negotiate_mime

Methods included from Http::Cache::Request

#etag_matches?, #fresh?, #if_modified_since, #if_none_match, #if_none_match_etags, #not_modified?

Constructor Details

#initialize(env) ⇒ Request

Returns a new instance of Request.



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# File 'lib/action_dispatch/http/request.rb', line 45

def initialize(env)
  super
  @method            = nil
  @request_method    = nil
  @remote_ip         = nil
  @original_fullpath = nil
  @fullpath          = nil
  @ip                = nil
  @uuid              = nil
end

Instance Method Details

#authorization ⇒ Object

Returns the authorization header regardless of whether it was specified directly or through one of the proxy alternatives.



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# File 'lib/action_dispatch/http/request.rb', line 316

def authorization
  @env['HTTP_AUTHORIZATION']   ||
  @env['X-HTTP_AUTHORIZATION'] ||
  @env['X_HTTP_AUTHORIZATION'] ||
  @env['REDIRECT_X_HTTP_AUTHORIZATION']
end

#body ⇒ Object

The request body is an IO input stream. If the RAW_POST_DATA environment variable is already set, wrap it in a StringIO.



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# File 'lib/action_dispatch/http/request.rb', line 262

def body
  if raw_post = @env['RAW_POST_DATA']
    raw_post.force_encoding(Encoding::BINARY)
    StringIO.new(raw_post)
  else
    @env['rack.input']
  end
end

#body_stream ⇒ Object

:nodoc:



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# File 'lib/action_dispatch/http/request.rb', line 275

def body_stream #:nodoc:
  @env['rack.input']
end

#check_path_parameters! ⇒ Object 



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# File 'lib/action_dispatch/http/request.rb', line 56

def check_path_parameters!
  # If any of the path parameters has an invalid encoding then
  # raise since it's likely to trigger errors further on.
  path_parameters.each do |key, value|
    next unless value.respond_to?(:valid_encoding?)
    unless value.valid_encoding?
      raise ActionController::BadRequest, "Invalid parameter: #{key} => #{value}"
    end
  end
end

#content_length ⇒ Object

Returns the content length of the request as an integer.



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# File 'lib/action_dispatch/http/request.rb', line 213

def content_length
  super.to_i
end

#cookie_jar ⇒ Object 



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# File 'lib/action_dispatch/middleware/cookies.rb', line 10

def cookie_jar
  env['action_dispatch.cookies'] ||= Cookies::CookieJar.build(self)
end

#deep_munge(hash) ⇒ Object

Extracted into ActionDispatch::Request::Utils.deep_munge, but kept here for backwards compatibility.



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# File 'lib/action_dispatch/http/request.rb', line 329

def deep_munge(hash)
  ActiveSupport::Deprecation.warn(
    'This method has been extracted into `ActionDispatch::Request::Utils.deep_munge`. Please start using that instead.'
  )

  Utils.deep_munge(hash)
end

#delete? ⇒ Boolean

Is this a DELETE request? Equivalent to request.request_method_symbol == :delete.

Returns:

  • (Boolean) 


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# File 'lib/action_dispatch/http/request.rb', line 157

def delete?
  HTTP_METHOD_LOOKUP[request_method] == :delete
end

#flash ⇒ Object

Access the contents of the flash. Use flash["notice"] to read a notice you put there or flash["notice"] = "hello" to put a new one.



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# File 'lib/action_dispatch/middleware/flash.rb', line 8

def flash
  @env[Flash::KEY] ||= Flash::FlashHash.from_session_value(session["flash"])
end

#form_data? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/action_dispatch/http/request.rb', line 271

def form_data?
  FORM_DATA_MEDIA_TYPES.include?(content_mime_type.to_s)
end

#fullpath ⇒ Object

Returns the String full path including params of the last URL requested.

# get "/articles"
request.fullpath # => "/articles"

# get "/articles?page=2"
request.fullpath # => "/articles?page=2"



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# File 'lib/action_dispatch/http/request.rb', line 192

def fullpath
  @fullpath ||= super
end

#GET ⇒ Object Also known as: query_parameters

Override Rack’s GET method to support indifferent access



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# File 'lib/action_dispatch/http/request.rb', line 299

def GET
  @env["action_dispatch.request.query_parameters"] ||= Utils.deep_munge(normalize_encode_params(super || {}))
rescue Rack::Utils::ParameterTypeError, Rack::Utils::InvalidParameterError => e
  raise ActionController::BadRequest.new(:query, e)
end

#get? ⇒ Boolean

Is this a GET (or HEAD) request? Equivalent to request.request_method_symbol == :get.

Returns:

  • (Boolean) 


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# File 'lib/action_dispatch/http/request.rb', line 133

def get?
  HTTP_METHOD_LOOKUP[request_method] == :get
end

#head? ⇒ Boolean

Is this a HEAD request? Equivalent to request.request_method_symbol == :head.

Returns:

  • (Boolean) 


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# File 'lib/action_dispatch/http/request.rb', line 163

def head?
  HTTP_METHOD_LOOKUP[request_method] == :head
end

#headers ⇒ Object

Provides access to the request’s HTTP headers, for example:

request.headers["Content-Type"] # => "text/plain"



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# File 'lib/action_dispatch/http/request.rb', line 170

def headers
  Http::Headers.new(@env)
end

#ip ⇒ Object 



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# File 'lib/action_dispatch/http/request.rb', line 225

def ip
  @ip ||= super
end

#key?(key) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/action_dispatch/http/request.rb', line 67

def key?(key)
  @env.key?(key)
end

#local? ⇒ Boolean

True if the request came from localhost, 127.0.0.1.

Returns:

  • (Boolean) 


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# File 'lib/action_dispatch/http/request.rb', line 324

def local?
  LOCALHOST =~ remote_addr && LOCALHOST =~ remote_ip
end

#media_type ⇒ Object

The String MIME type of the request.

# get "/articles"
request.media_type # => "application/x-www-form-urlencoded"



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# File 'lib/action_dispatch/http/request.rb', line 208

def media_type
  content_mime_type.to_s
end

#method ⇒ Object

Returns the original value of the environment’s REQUEST_METHOD, even if it was overridden by middleware. See #request_method for more information.



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# File 'lib/action_dispatch/http/request.rb', line 122

def method
  @method ||= check_method(env["rack.methodoverride.original_method"] || env['REQUEST_METHOD'])
end

#method_symbol ⇒ Object

Returns a symbol form of the #method



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# File 'lib/action_dispatch/http/request.rb', line 127

def method_symbol
  HTTP_METHOD_LOOKUP[method]
end

#original_fullpath ⇒ Object

Returns a String with the last requested path including their params.

# get '/foo'
request.original_fullpath # => '/foo'

# get '/foo?bar'
request.original_fullpath # => '/foo?bar'



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# File 'lib/action_dispatch/http/request.rb', line 181

def original_fullpath
  @original_fullpath ||= (env["ORIGINAL_FULLPATH"] || fullpath)
end

#original_url ⇒ Object

Returns the original request URL as a String.

# get "/articles?page=2"
request.original_url # => "http://www.example.com/articles?page=2"



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# File 'lib/action_dispatch/http/request.rb', line 200

def original_url
  base_url + original_fullpath
end

#patch? ⇒ Boolean

Is this a PATCH request? Equivalent to request.request_method == :patch.

Returns:

  • (Boolean) 


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# File 'lib/action_dispatch/http/request.rb', line 145

def patch?
  HTTP_METHOD_LOOKUP[request_method] == :patch
end

#POST ⇒ Object Also known as: request_parameters

Override Rack’s POST method to support indifferent access



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# File 'lib/action_dispatch/http/request.rb', line 307

def POST
  @env["action_dispatch.request.request_parameters"] ||= Utils.deep_munge(normalize_encode_params(super || {}))
rescue Rack::Utils::ParameterTypeError, Rack::Utils::InvalidParameterError => e
  raise ActionController::BadRequest.new(:request, e)
end

#post? ⇒ Boolean

Is this a POST request? Equivalent to request.request_method_symbol == :post.

Returns:

  • (Boolean) 


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# File 'lib/action_dispatch/http/request.rb', line 139

def post?
  HTTP_METHOD_LOOKUP[request_method] == :post
end

#put? ⇒ Boolean

Is this a PUT request? Equivalent to request.request_method_symbol == :put.

Returns:

  • (Boolean) 


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# File 'lib/action_dispatch/http/request.rb', line 151

def put?
  HTTP_METHOD_LOOKUP[request_method] == :put
end

#raw_post ⇒ Object

Read the request body. This is useful for web services that need to work with raw requests directly.



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# File 'lib/action_dispatch/http/request.rb', line 251

def raw_post
  unless @env.include? 'RAW_POST_DATA'
    raw_post_body = body
    @env['RAW_POST_DATA'] = raw_post_body.read(content_length)
    raw_post_body.rewind if raw_post_body.respond_to?(:rewind)
  end
  @env['RAW_POST_DATA']
end

#remote_ip ⇒ Object

Originating IP address, usually set by the RemoteIp middleware.



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# File 'lib/action_dispatch/http/request.rb', line 230

def remote_ip
  @remote_ip ||= (@env["action_dispatch.remote_ip"] || ip).to_s
end

#request_method ⇒ Object

Returns the HTTP method that the application should see. In the case where the method was overridden by a middleware (for instance, if a HEAD request was converted to a GET, or if a _method parameter was used to determine the method the application should use), this method returns the overridden value, not the original.



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# File 'lib/action_dispatch/http/request.rb', line 104

def request_method
  @request_method ||= check_method(env["REQUEST_METHOD"])
end

#request_method=(request_method) ⇒ Object

:nodoc:



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# File 'lib/action_dispatch/http/request.rb', line 108

def request_method=(request_method) #:nodoc:
  if check_method(request_method)
    @request_method = env["REQUEST_METHOD"] = request_method
  end
end

#request_method_symbol ⇒ Object

Returns a symbol form of the #request_method



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# File 'lib/action_dispatch/http/request.rb', line 115

def request_method_symbol
  HTTP_METHOD_LOOKUP[request_method]
end

#reset_session ⇒ Object

TODO This should be broken apart into AD::Request::Session and probably be included by the session middleware.



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# File 'lib/action_dispatch/http/request.rb', line 281

def reset_session
  if session && session.respond_to?(:destroy)
    session.destroy
  else
    self.session = {}
  end
  @env['action_dispatch.request.flash_hash'] = nil
end

#server_software ⇒ Object

Returns the lowercase name of the HTTP server software.



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# File 'lib/action_dispatch/http/request.rb', line 245

def server_software
  (@env['SERVER_SOFTWARE'] && /^([a-zA-Z]+)/ =~ @env['SERVER_SOFTWARE']) ? $1.downcase : nil
end

#session=(session) ⇒ Object

:nodoc:



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# File 'lib/action_dispatch/http/request.rb', line 290

def session=(session) #:nodoc:
  Session.set @env, session
end

#session_options=(options) ⇒ Object 



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# File 'lib/action_dispatch/http/request.rb', line 294

def session_options=(options)
  Session::Options.set @env, options
end

#uuid ⇒ Object

Returns the unique request id, which is based on either the X-Request-Id header that can be generated by a firewall, load balancer, or web server or by the RequestId middleware (which sets the action_dispatch.request_id environment variable).

This unique ID is useful for tracing a request from end-to-end as part of logging or debugging. This relies on the rack variable set by the ActionDispatch::RequestId middleware.



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# File 'lib/action_dispatch/http/request.rb', line 240

def uuid
  @uuid ||= env["action_dispatch.request_id"]
end

#xml_http_request? ⇒ Boolean Also known as: xhr?

Returns true if the “X-Requested-With” header contains “XMLHttpRequest” (case-insensitive), which may need to be manually added depending on the choice of JavaScript libraries and frameworks.

Returns:

  • (Boolean) 


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# File 'lib/action_dispatch/http/request.rb', line 220

def xml_http_request?
  @env['HTTP_X_REQUESTED_WITH'] =~ /XMLHttpRequest/i
end